As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX: DENT IN RT TAIL FUSELAGE BAY, 5 INCHES LONG, 1 INCH WIDE AND .019 INCHES DEEP FS X910.0 BETWEEN STRINGER 21R AND 22R ON RT SIDE OF TAIL FUSELAGE. MAINTENANCE REPAIRED IAW Q400 NDTM PART 6, 51-00-01, HORIZON EA 6-55-146, AND RD 8/4-55-0271.